Home / 531,501.08-733,474.78-289,787.69

Finding the Fourth Proportional to 531,501.08, 733,474.78 and 289,787.69

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Solution

The fourth proportional to 531,501.08, 733,474.78 and 289,787.69 is: 399,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,501.08 : 733,474.78 = 289,787.69 : x
  2. Step 2: Convert to fraction form
    531,501.08/733,474.78 = 289,787.69/x
  3. Step 3: Cross multiply
    531,501.08x = 733,474.78 × 289,787.69
  4. Step 4: Simplify right side
    531,501.08x = 212,551,963,278.68
  5. Step 5: Solve for x
    x = 212,551,963,278.68/531,501.08
  6. Step 6: Final answer
    x = 399,908.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.